Joe Marcus Johnson is an American former professional basketball player. Nicknamed "Iso Joe", he played high school basketball for Little Rock Central High School and college basketball for the Arkansas Razorbacks. After two years with Arkansas, he declared for the 2001 NBA draft where he was drafted 10th overall by the Boston Celtics.

Little Rock Central High School (LRCH) is an accredited comprehensive public high school in Little Rock, Arkansas, United States. The school was the site of the Little Rock Crisis in 1957 after the U.S. Supreme Court ruled that segregation by race in public schools was unconstitutional three years earlier. This was during the period of heightened activism in the civil rights movement.